Title :
Flexible angular sensor [and biomechanical application]
Author :
Roduit, Romain ; Besse, Pierre-André ; Micallef, Jean-Paul
Author_Institution :
Inst. of Microsyst., Lausanne, Switzerland
fDate :
8/1/1998 12:00:00 AM
Abstract :
A novel flexible sturdy angular sensor, based on a new simple principle, has been realized and successfully tested. This sensor yields the angular value between the extremities independently of the path of the flexible part. The sensitive element is mounted in a Wheatstone bridge, leading to a very simple output signal processing and good temperature independence. The first measurements demonstrate a precision of ±2° on a stroke of 100° and a resolution of less than .1°. Biomechanical applications of this sensor have been demonstrated by measuring knee rotation during walking
Keywords :
angular measurement; biomechanics; biomedical measurement; bridge circuits; displacement measurement; electric sensing devices; Wheatstone bridge; angular value between extremities; biomechanical applications; biomechanical sensor; differential measurement; flexible angular sensor; knee rotation measurement; longitudinal displacements; reference goniometer; resistive sensor; simple output signal processing; temperature independence; walking; Biomedical signal processing; Biosensors; Bridge circuits; Extremities; Knee; Lead; Rotation measurement; Signal resolution; Temperature sensors; Testing;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
